/Engine/Source/Editor/UnrealEd/Public/Kismet2/StructureEditorUtils.h
Can the structure be a member variable for a BPGClass or BPGStruct
static [EStructureError](API\Editor\UnrealEd\Kismet2\FStructureEditorUtils\EStructureError) IsStructureValid ( const [UScriptStruct](API\Runtime\CoreUObject\UObject\UScriptStruct) * Struct, const [UStruct](API\Runtime\CoreUObject\UObject\UStruct) * RecursionParent, [FString](API\Runtime\Core\Containers\FString) * OutMsg )